 /*******************************************************************************
  * Copyright (c) 2005, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.ui.internal.dialogs;

 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.ui.dialogs.PatternFilter;

 /**
  * A class that handles filtering wizard node items based on a supplied
  * matching string.
  *
  * @since 3.2
  *
  */
 public class WizardPatternFilter extends PatternFilter {

     /**
      * Create a new instance of a WizardPatternFilter
      * @param isMatchItem
      */
     public WizardPatternFilter() {
         super();
     }

     /*
      * (non-Javadoc)
      * @see org.eclipse.ui.internal.dialogs.PatternFilter#isElementSelectable(java.lang.Object)
      */
     public boolean isElementSelectable(Object element) {
         return element instanceof WorkbenchWizardElement;
     }

     /*
      * (non-Javadoc)
      * @see org.eclipse.ui.internal.dialogs.PatternFilter#isElementMatch(org.eclipse.jface.viewers.Viewer, java.lang.Object)
      */
     protected boolean isLeafMatch(Viewer viewer, Object element) {
         if (element instanceof WizardCollectionElement) {
             return false;
         }
         
         if (element instanceof WorkbenchWizardElement) {
             WorkbenchWizardElement desc = (WorkbenchWizardElement) element;
             String text = desc.getLabel();
             if (wordMatches(text)) {
                 return true;
             }
         }
         return false;
     }

 }

